Plant Mucilages. XX. : The Location of O-Acetyl Groups in Paniculatan and the Influence of Deacetylation on Its Physical Properties

Abstract

The O-acetyl groups in paniculatan, the mucous polysaccharide isolated from the bark of Hydrangea paniculata SIEB., molecular weight of 545900, were located in position 3 of about 40% of L-rhamnopyranosyl residues. A completely deacetylated polysaccharide possessing significant lower molecular weight, 41950, was obtained by the action of 0.1 N sodium hydroxide at room temperature for 10 min, and the influence of this treatment on the partial degradation of a maoromolecule was considered.